Free

Details

  • Released
  • Updated
  • February 10, 2017
  • November 18, 2019

Features

ISC DNS Checker screenshot #1 for iPhone
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About

This application tests recursive DNS servers for compliance with current DNS protocol specifications, particularly EDNS(0). It can automatically detect your device's DNS servers or allow manual IP address input for testing. Both IPv4 and IPv6 are supported.

Tests DNSSEC compliance
Tests EDNS(0) conformance
Automatic DNS server detection
Manual IP address input
IPv4 and IPv6 support
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What's New in ISC DNS Checker

0.15

November 18, 2019

Bug fixes for iOS 13

User reviews

App needs a bug fix

Seems to be a useful app, unfortunately it crashes when it starts. Most likely needs to be updated for iOS 13.x

Breaks on iOS 13

This is a good utility, very handy for those cases where you need it. But it’s broken on iOS 13, crashing on start-up.

Developer apps

FAQ

What is ISC DNS Checker used for?

ISC DNS Checker is used to test recursive DNS servers for their conformance to current DNS protocol specifications, with a focus on EDNS(0) as defined in RFC 6891. It helps ensure DNS resolvers are behaving correctly.

Does ISC DNS Checker support both IPv4 and IPv6?

Yes, ISC DNS Checker supports both IPv4 and IPv6 protocols for testing DNS servers. You can test servers using either address family.

Can I manually enter DNS server IP addresses in ISC DNS Checker?

Yes, in addition to automatically detecting your device's DNS servers, ISC DNS Checker allows you to manually enter IP addresses for testing. This provides flexibility in choosing which servers to evaluate.

What is the rating for ISC DNS Checker?

ISC DNS Checker has a rating of 3.0 stars based on 1 rating. This indicates a mixed reception from its current user base.

Is ISC DNS Checker free to use?

Yes, ISC DNS Checker is available for free. There are no costs associated with downloading or using its core features.

What devices is ISC DNS Checker compatible with?

ISC DNS Checker is compatible with iPhone, iPad, and iPod devices. It is designed for the iOS ecosystem.

When was ISC DNS Checker last updated?

The latest version of ISC DNS Checker was released on November 18, 2019. The app has not received an update since then.

Does ISC DNS Checker have ads?

No, ISC DNS Checker does not contain advertisements. It is an ad-free application.